There’s a lot of crap on the internet isn’t there so I can see why you’d assume that SEO keyword articles are just more crap. And not just any old crap, crap to manipulate search engine rankings, so can you trust SEO articles?
Well yes, by their nature you can trust them. The very fact that they exist and that you have found them means you can trust them because if they were crap, you wouldn’t have found them because the search engine wouldn’t have directed you to them because the search engine is there to protect you from crap.
During the late 1990s search engines were severely manipulated by crap which people thought would help their sites rank better. Well the search engines have learnt their lessons from those ‘dark ages’ and makes a point to ignore crap, ensuring that the sites, the SEO articles and the information which ranks where you can find it, is useful, correct and pertinent to your search.